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KMID : 0359420070250010032
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Korean Journal of Sports Medicine
2007 Volume.25 No. 1 p.32 ~ p.37
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The Effects of Biomechanical Foot Orthosis Controlling Pelvic Malalignment on Adolescent Mild Scoliosis
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Lee Hong-Jae
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Abstract
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The purpose of this study is to evaluate the effect of foot orthoses designed to correct malalignment of the pelvis and lower limbs on adolescent mild scoliosis. We reviewed 934 patients with scoliosis from 2001 to 2006. The inclusion criteria were as follows; adolescent aged 10 and over, Cobb’s angle 10~25 degrees on initial visit, no spinal brace application, and more than 1year follow-up. The subjects satisfying the inclusion criteria were divided into two groups; control group and foot orthosis(FO) application group. Custom-molded foot orthoses, which were fabricated on the knowledge of the linkage biomechanics of lower limb and pelvis, were applied. The initial angle, changes of Cobb’s angle, the site and direction of curvatures, direction of vertebral rotation, Risser grade, and existence of the pelvic malignment were measured. There were 30 in the FO group wearing foot orthoses and 30 in the control group. The average ages were 13.1 in foot orthosis group and 13.3 in the control. The initial Cobb’s angles in lower curvature were 15.7±4.7 and 18.3±6.4 and those in upper curvature were 14.7±5.5 and 15.8±6.8 respectively. The changes of Cobb’s angle in lower curvature after 1 year were -4.1±3.8 in the FO group and +1.5±3.7 in the control(p<0.0001). Those in upper curvature were +1.6±3.5 in the FO group and +3.2±4.9 in the control(p=0.0863). This meant very significant angular reduction in the lower curvature in the FO group. In conclusion, the foot orthoses controlling three motion-plane of the pelvis had corrective effect on lower curvature, but no effect on upper curvature of adolescent mild scoliosis.
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KEYWORD
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Scoliosis, Foot orthosis
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